JP2001182407A - Opening/closing device of vehicle lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To compose a lock main body to be operable even when a trouble occurs in a stopped state of a rotary member at a position other that a neutral position in an opening/closing device of a vehicle lock provided with a closing function and an opening function. SOLUTION: A cancellation lever 23 is rotated from a connection position to a cancellation position, so linkage of a rotary member 23 with a closing lever 21 is disconnected by a disconnecting member 31, thereby a latch and a locking plate can be freely rotated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a closing function for forcibly shifting a locking device for a vehicle opening / closing body from a half latch state to a full latch state by driving a motor, and an open function for releasing engagement with a striker. And a device for opening and closing a lock for a vehicle, comprising:

[0002]

2. Description of the Related Art In a device as described above, a lock body having a latch detachable from a striker and a locking plate detachable from the latch is driven by a motor.
An output mechanism having a rotating member rotatable in two directions from a neutral position, and by rotating the rotating member in one direction from the neutral position, disengagement of the latch and the locking plate, It is also known to move the latch from the half-latch position to the full-latch position by pivoting in the other direction (for example, Japanese Patent Publication No. 5-27748).
Reference).

[0003]

However, in the conventional apparatus as described above, a failure occurs in the motor or the electric system during operation of the output mechanism, and the rotating member is moved to a position other than the neutral position. When stopped, the movement of the latch and the locking plate connected to the rotating member is restricted, so that the operation for opening the opening / closing body of the lock body and the operation for closing the door are disabled, and the opening / closing body is opened and closed. May not be possible.

The present invention has been made in view of the above-mentioned problems of the prior art, and operates the lock main body even when some trouble occurs while the rotating member is stopped at a position other than the neutral position. It is an object of the present invention to provide a device for opening and closing a vehicle lock.

[0005]

According to the present invention, the above-mentioned problem is solved as follows. (1) A lock body having a latch engageable with a striker, a locking plate engaging with the latch and preventing the latch from rotating, a motor rotatable in normal and reverse directions, and An output mechanism for disengaging the latch from the locking plate and moving the latch from the half-latch position to the full-latch position by reversing the motor, wherein the output is A rotating member configured to be rotated in two forward and reverse directions from a neutral position by forward and reverse rotation of the motor; and a mechanism that rotates in one direction from the neutral position by being linked to the rotating member. The latch releases the engagement between the latch and the locking plate, and also rotates in the other direction to move the latch from the half latch position to the full latch position. As before moving, and closing lever that is linked to the locking plate and the latch is disposed between the rotating member and the closing lever,
And, a connection position for linking the rotating member and the close lever, an interrupting member movable to a cancel position for disconnecting the linkage, and an operating portion at an end, and the interrupting member,
It is provided with a cancel lever movable to a connection position that can be held at the connection position and a cancel position that can be held at the cancel position.

(2) In the above item (1), the rotating member and the closing lever are pivotally attached to a base plate provided on the lock body with the same shaft.

(3) In the above item (2), the rotating member
An arc-shaped elongated hole and an engaging hole extending eccentrically from substantially the center of the elongated hole are provided, and the closing lever is extended eccentrically so as to overlap with a part of the elongated hole and the engaging hole. A switching hole is provided, and the intermittent member is slidably engaged with the elongated hole, the engaging hole, and the switching hole, and a connection position engaged with the engaging hole, and a canceling member separated from the engaging hole. Make it movable to a position.

(4) In any one of the above items (1) to (3), the closing lever and the locking plate are linked by an open lever pivotally attached to the base plate, and the cancel lever and the open lever are
When the cancel lever is moved from the connection position to the cancel position by the connecting member, the engagement between the latch and the locking plate is released via the open lever.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. (1) is a lock body fixed to a back door (not shown) pivotally attached to a rear part of a vehicle body with a hinge shaft (not shown) having an upper end facing left and right so as to be able to open and close in a vertical direction. The back door is locked in a closed state by engaging with a striker (5) fixed to the vehicle body side.

(2) The lock body is driven by the motor (3).
A closure function for forcibly changing (1) from a half latched state to a full latched state, an open function for releasing the engagement between the lock body (1) and the striker (5), and a cancel function for canceling the closure function. Output mechanism.

[0011] Inside the body (4) of the lock body (1), a latch (6) which can be disengaged from a striker (5) fixed to the vehicle body side, and a claw (6a) ( A locking plate (7) that can be engaged and disengaged from 6b) is pivotally connected with a latch shaft (8) and a locking plate shaft (9) that are respectively oriented in the vertical direction.

As shown in FIG. 9, the latch (6) has a full latch position which is completely engaged with the striker (5), and a half latch position which is barely engaged with the striker (5) as shown in FIG. As shown in FIG. 11, the striker (5) can be moved to the separated open position.

The locking plate (7) includes a spring (not shown).
By being urged in the counterclockwise direction in FIG. 9 and engaging the claw (6a) in the full latch state, and engaging the claw (6b) in the half-latched state,
While preventing the latch (6) from rotating in the open direction, the latch (6) can be moved to the open position separated from the claws (6a) (6b) as shown in FIG.

The base plate (1) fixed to the body (4)
0) is a substantially horizontal cover (11) covering the upper surface of the body (4).
And a base portion (12) that stands substantially vertically from the rear portion (the upper left portion in FIG. 1) of the cover portion (11).

On the cover portion (11), an engaging pin fixed to a latch shaft (8) so as to rotate integrally with the latch (6) and projecting upward at the free end portion. A cam lever (13) forming a part of a latch (6) to which (13a) is fixed, and a cam portion (13b) formed on an outer periphery of the cam lever (13) are detected.
A half-latch detection switch (14) for detecting a half-latch position of the latch (6) and a full-latch detection switch (15) for detecting a full-latch position are provided.

The motor (3) is fixed to the upper rear surface of the base portion (12) with a plurality of bolts (16) and nuts (17), and is provided with a reduction mechanism (not shown) built in the motor case (3a). And a gear (18) that can rotate forward and reverse.

The output mechanism (2) is provided on the front surface of the base (12).
Pivotally mounted with a shaft (19) facing forward and backward, and a gear (18)
A sector gear (20) serving as a rotating member having a tooth portion (20a) that meshes with the sector gear (20) on the front surface of the base portion (12).
(19), a cancel lever (23) pivotally attached to the front surface of the base portion (12) with an axis (22), and a shaft (24) attached to the rear surface of the base portion (12). ) And an open lever (25) pivotally mounted with the lever.

As shown in FIG. 3, the shaft (19) is disposed on the axis (8a) of the latch shaft (8) when viewed from the front.
4) is disposed on the axis (9a) of the locking plate shaft (9), and the axial distance between the shaft (19) and the shaft (24) in the left-right direction is
Distance between the latch shaft (8) and the locking plate shaft (9)
(L) is set substantially equal to (L).

The closing lever (21) is connected to the latch (6).
The open lever (25) requires a large force to move it from the half-latch position to the full-latch position with a large force. Since the locking plate (7), which can be moved without moving, is moved, the locking plate (7) is made of a thinner material than the closing lever (21).

The base portion (12) has an arc-shaped long hole (12a) centered on the axis (19) and pointing in the vertical direction, and a substantially central portion of the long hole (12a) and the rear of the base portion (12). And a neutral detection switch for detecting a neutral position, described later, of the sector gear (20).
An open detection switch (2) for detecting an open position (described later) of the open lever (25) is also provided on the front side.
7) are provided respectively.

The forward rotation of the motor (3) is controlled by the operation of a handle switch (not shown) provided on the outer panel of the back door and the operation of the full latch detection switch (15). The reverse rotation is controlled by the operation, and the stop is controlled by the operation of the neutral detection switch (26).

The sector gear (20) has a protruding portion (20b) protruding from the end of the tooth portion (20a), and a long hole (20c) which is formed in an arc shape about the axis (19) and is oriented in the left-right direction. And an engagement hole (20d) extending in an eccentric direction from substantially the center of the long hole (20c) in the longitudinal direction. As shown in FIGS. 2 and 4, the neutral detection switch (26) is normally The motor (3) is stopped at a neutral position that has been operated by contacting the protrusion (20b), and from this neutral position, the motor (3) rotates in the open direction (counterclockwise in FIG. 2; It can rotate in two directions: clockwise) and closing (clockwise in FIG. 2, counterclockwise in FIG. 4).

The closing lever (21) extends upward and has a switching hole (28a) that can be overlapped with a part of the long hole (20c) and the engaging hole (20d) of the sector gear (20). The arm (28) provided, extends sideways so as to overlap the open lever (25) with the base (12) interposed, and at the tip,
An open arm portion (29) having a pin (29a) projecting rearward through the long hole (12a) of the base portion (12); and a body.
(4) has a closing portion (30) extending obliquely downward, and is always integrated with the sector gear (20).
It can rotate in two directions from the neutral position.

The closing portion (30) engages with the engaging pin (13a) by rotating the closing lever (21) in the closing direction from the neutral position, and moves the latch (6) from the half latch position to the full latch position. The cam lever (13) is rotated so that it can be moved to the position.

Between the sector gear (20) and the arm (28) of the close lever (21), the slot (20c) and the engaging hole (20d) and the switching hole (28a) are slidably fitted. A combined flanged pin-shaped intermittent member (31) is provided.

The intermittent member (31) is provided with an engagement hole of the sector gear (20).
(20d), and as shown in FIGS. 2 and 4, when it is located above the switching hole (28a) and is at the connection position engaged with the engagement hole (20d), With the rotation of the sector gear (20), the two are connected so that the closing lever (21) can also rotate integrally, and as shown in FIG.
(28a) and at the cancel position where it has separated from the engaging hole (20d) and moved to the long hole (20c),
The connection between the sector gear (20) and the close lever (21) is cut off so that the sector gear (20) and the close lever (21) can rotate independently of each other from the center along the (20c).

The cancel lever (23) has an arc shape centered on the shaft (19), and overlaps with the long hole (20c), the engaging hole (20d), and the switching hole (28a) to form an intermittent member. A curved arm portion having a guide hole (32a) in which a slidable fitting (31) is fitted.
(32), an operating portion (33) extending upward, a connecting position for holding the intermittent member (31) at the connecting position, and an intermittent member.
(31) can be moved to a cancel position that holds the cancel position, and is normally held at the connection position by a spring (37).

The operating section (33) is provided at a position where it can be operated from the outside by removing a part of the trim on the inner panel side of the back door.

The open lever (25) extends substantially upward so as to intersect the guide groove (12a) of the base portion (12), and when the close lever (21) rotates in the open direction, the pin (29a And an open portion (35) extending downward toward the body (4) and abutting against the projection (7a) of the locking plate (7). 3 has a detection arm portion (36) extending rightward and capable of contacting the open detection switch (27), and from a standby position where the engagement arm (34) abuts the stopper (12b), Locking plate
(7) can be turned in the open direction (counterclockwise in FIG. 2 and clockwise in FIG. 3), and normally urged toward the standby position by the spring (38). I have.

When the open lever (25) rotates in the open direction, the open portion (35) comes into contact with the projection (7a) of the locking plate (7), and
(7) is moved to the open position.

When the close lever (21) rotates from the neutral position in the open direction, the pin (29a)
(34), the open lever (25) is rotated in the open direction from the standby position, and after the open lever (25) is moved to the open position as shown in FIG. The arm (34) comes off the movement track of the pin (29a), and the pin (29
When a) slides along the outer edge (34a) of the engagement arm (34), while the open lever (25) is held in the open position, the closing lever (21) moves in the open direction in the open direction. It is tolerated.

When the open lever (25) moves to the open position, the outer edge (34a) of the engagement arm (34) in the open lever (25) is formed in an arc shape so as to center on the shaft (19). Is formed. With this configuration, the open lever (25) can be reliably held at the open position while the close lever (21) idles.

Therefore, immediately after the motor (3) is stopped by the detection of the open detection switch (27), the closing lever
Even if (21) exceeds the open position due to various inertial forces,
Since the movement after the excess is not transmitted to the open lever (25), deformation and damage of the open lever (25) can be prevented.

Next, each function of the above-described embodiment will be described with reference to FIGS. (Open function) When the back door is in the closed position,
As shown in FIG. 4, the output mechanism (2) has the sector gear (20) and the close lever (21) at the neutral position, and the intermittent member (31) is held at the connection position, and The closing lever (21) is connected. Lock body (1)
As shown in FIG. 9, the latch (6) is in the full latch position, and the locking plate (7) is engaged with the claw (6a).

In this state, when the handle switch of the back door is operated, the motor (3) rotates forward, and the sector gear (20) and the close lever (21) rotate from the neutral position in the open direction. As shown in FIG. 5, the intermittent member (31) moves to the right of the guide hole (32a), and the pin (29a)
Pushes the engagement arm (34) of the open lever (25),
After the state shown in FIG. 5, the open lever (25) is moved to the open position shown in FIG.

When the open lever (25) is moved to the open position, the engaging arm (34) is displaced from the locus of movement of the pin (29a), and the open lever (24) does not rotate any further. And the open portion (35) is engaged with the protrusion (7a) of the locking plate (7) to move the locking plate (7) to the open position, thereby opening the back door. .

The open detection switch (27) is connected to the detection arm
When the motor (3) is detected, the motor (3) is controlled to rotate in the reverse direction, the sector gear (20) and the close lever (21) return from the open position to the neutral position, and as shown in FIG. ) Detects the protrusion (20b),
The power supply to (3) is stopped, and the open lever (25) is
It returns to the standby position by the biasing force of (38).

(Close Function) When the back door is open, the lock body (1) and the output mechanism (2) are in the states shown in FIGS. 11 and 4, respectively. When the back door is closed from this state, the latch (6) engages with the striker (5) and moves from the open position to the half latch position shown in FIG.

When the half-latch detection switch (14) detects that the latch (6) has reached the half-latch position via the cam lever (13), the motor (3) is controlled to rotate in the reverse direction, as shown in FIG. The sector gear (20) and the closing lever (2
1) rotates in the closing direction, and the intermittent member (31) moves to the left of the guide hole (32a).

When the closing lever (21) moves in the closing direction, the closing portion (30) is engaged with the engaging pin (1) of the cam lever (13).
By engaging 3a) and forcibly moving the latch 6 from the half-latch position to the full-latch position, the back door is retracted from the half-door state to the fully closed position.

When the full latch detection switch (15) detects the full latch position of the latch (6) via the cam portion (13b) of the cam lever (13), the motor (3) is controlled to rotate forward and the sector gear (20) and the motor (3) are rotated. The closing lever (21) returns to the neutral position.

(Cancel Function) During the closing operation of the sector gear (20) and the closing lever (21), for example, the motor
When the rotation of the motor (3) stops due to (3) or a failure of the control circuit or the like, and the sector gear (20) stops at the close position as shown in FIG. There is a possibility that the engagement with the engagement pin (13a) of (13) prevents the latch (6) from moving in the direction of the open position, and the subsequent opening operation of the back door becomes impossible. In such a case, the door opening operation can be recovered by moving the cancel lever (23) from the connection position to the cancel position.

That is, when the cancel lever (23) moves to the cancel position, the intermittent member (31) moves to the cancel position, and the connection between the sector gear (20) and the close lever (21) is disconnected. In this state, when the close lever (21) is returned to the neutral position, the latch (6) can be moved to the open position. After that, operating the operating means (not shown) separately installed in the appropriate place of the vehicle, the locking plate
By moving (7) to the open position, the back door can be opened.

When the rotation of the motor (3) is stopped for the same reason as described above while the closing lever (21) is in the open position, the locking plate (7) is moved via the opening lever (25). There is a possibility that the closing of the back door may not be possible due to the restraint at the open position. As a result, the locking plate (7) is released and the back door can be closed.

FIG. 13 shows another embodiment of the present invention. The cancel lever (23) is an arm that extends downward.
(23a), the other end of a rod (39) having one end connected to the arm portion (23a) and pointing substantially in the left-right direction is connected to an open lever (2
By slidably engaging the long hole (25a) formed in 5), by moving the cancel lever (23) from the connection position shown by the solid line to the cancel position shown by the imaginary line,
The open lever (25) can be moved to the open position.

The end (39a) of the rod (39) engaged with the long hole (25a) of the open lever (25) is
When the open lever (25) is rotated in the open direction by (21), the movement of the open lever (25) is prevented from being transmitted to the cancel lever (23) by idling in the long hole (25a). It has become.

In the embodiment shown in FIG. 13, while the sector gear (20) and the closing lever (21) are rotating in the closing direction, a failure of the motor (3) or the electric system causes the motor (3) to fail. ) Stops and the sector gear (20) and the close lever (21) stop at the close position.By rotating the cancel lever (23) to the cancel position, the sector gear (20) and the close lever The connection with the locking plate (7) is released through the rod (39) and the opening lever (25) while releasing the connection with the closing lever (21) to enable the closing lever (21) to return to the neutral position. To open the back door.

Since the other structure is the same as that of the previous embodiment, portions having the same functions are denoted by the same reference numerals as those of the above-described embodiment, and detailed description is omitted.

It should be noted that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the technical scope of the present invention. For example, the cam lever (13) may be abolished, the closing portion (30) may be directly engaged with the latch (6), and the latch (6) may be rotated from the half latch position to the full latch position.

[0050]

According to the present invention, the following effects can be obtained. (a) According to the first aspect of the invention, when the rotating member stops at a position other than the neutral position due to a failure of the motor or the electric system, the operation unit is operated to move the cancel lever from the connection position to the cancel position. , The close lever can be returned to the neutral position, and the latch and the locking plate can be released from the restraint to open and close the lock body.

(B) According to the second aspect of the present invention, since the pivoting member and the closing lever can be pivotally mounted coaxially to the base plate provided on the lock body, the output mechanism can be reduced in size, and further the overall device can be reduced in size. Can be achieved.

(C) According to the third aspect of the invention, with a simple configuration, the link between the rotating member and the closing lever can be intermittently connected, and a reliable operation can be obtained.

(D) According to the fourth aspect of the present invention, while the rotating member and the closing lever are moving in the closing direction,
If the latch is restrained to the full latch position due to a failure of the motor or the electric system, release the restraint in the latch and disengage the locking plate and the latch simultaneously by moving the cancel lever to the cancel position. The lock body can be easily and quickly released.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a lock body and an output mechanism according to an embodiment of the present invention.

FIG. 2 is a front view of the output mechanism.

FIG. 3 is a rear view of the lock body and the output mechanism.

FIG. 4 is an explanatory view of the operation of the output mechanism in a rear view when the close lever is at a neutral position.

FIG. 5 is an explanatory diagram of the operation of the output mechanism in a rear view when the close lever is performing an open operation.

FIG. 6 is an explanatory diagram of the operation of the output mechanism when the open lever is at the open position, as viewed from the rear.

FIG. 7 is an explanatory view of the operation of the output mechanism in a rear view when the close lever is at the close position.

FIG. 8 is an explanatory view of the operation of the output mechanism in rear view when the cancel lever is at the cancel position.

FIG. 9 is a plan view of the lock body in a fully latched state, also taken along line IX-IX in FIG. 3;

FIG. 10 is a plan view of the lock body in a half-latch state crossed similarly to FIG. 9;

FIG. 11 is a plan view of the lock body in the open state, similarly to FIG. 9;

FIG. 12 is a plan view of the lock body when the crossing locking plate is in the open position similarly to FIG. 9;

FIG. 13 is an operation explanatory view of an output mechanism in another embodiment of the present invention.

[Explanation of symbols]

 (1) Lock body (2) Output mechanism (3) Motor (4) Body (5) Striker (6) Latch (6a) (6b) Claw (7) Locking plate (7a) Engagement (8) Latch shaft (9) Locking plate shaft (10) Base plate (11) Cover (12) Base (12a) Slot (12b) Stopper (13) Cam lever (latch) (13a) Engagement pin (13b) Cam (14) Half latch detection switch (15) Full latch detection switch (16) Bolt (17) Nut (18) Gear (19) Shaft (20) Sector gear (rotating member) (20a) Tooth (20b) Projection (20c) Slot (20d) Engagement hole (21) Close lever (22) Shaft (23) Cancel lever (24) Shaft (25) Open lever (26) Neutral detection switch (27) Open detection switch (28) Arm (28a) switch Hole (29) Open arm part (29a) Pin (30) Close part (31) Intermittent member (32) Arm part (32a) Guide hole (33) Operation part (34) Engagement arm (35) Open part (36) Detection arm (37) (38) Spring (39) Connection Wood

Claims (4)

[Claims] 1. A lock body having a latch engageable with a striker, a locking plate engaging with the latch and preventing the latch from rotating, a motor capable of rotating forward and reverse, and a forward rotation of the motor. An open / close device for a vehicle lock including an output mechanism configured to release the engagement between the latch and the locking plate and to move the latch from the half latch position to the full latch position by reversing the motor. A rotating member configured to rotate the output mechanism in two forward and reverse directions from a neutral position by forward / reverse rotation of the motor; and being linked to the rotating member, the output mechanism moves in one direction from the neutral position. By turning the latch, the engagement between the latch and the locking plate is released, and by turning in the other direction, the latch is released from the half-latch position. A closing lever linked to the locking plate and the latch so as to move to the latch position; and a connection position disposed between the rotating member and the closing lever, and linking the rotating member and the closing lever. An interrupting member movable to a cancel position for disconnecting the link; and a connection position having an operation portion at an end, and a cancel position capable of holding the interrupting member at a connection position and a cancel position. And an open / close device for a vehicle lock. 2. The vehicle lock opening and closing device according to claim 1, wherein the rotating member and the closing lever are pivotally attached to a base plate provided on the lock body with the same shaft. 3. A rotating member is provided with an arc-shaped long hole and an engaging hole extending eccentrically from substantially the center of the long hole, and a part of the long hole and an engaging hole are provided on a closing lever. A switching hole extending in the eccentric direction so as to be superimposed is provided, and the intermittent member is slidably engaged with the long hole and the engagement hole, and the switching hole,
3. The vehicle lock opening and closing device according to claim 2, wherein the opening and closing device is movable to a connection position engaged with the engagement hole and a cancel position separated from the engagement hole. 4. A closing lever and a locking plate are linked by an open lever pivotally connected to a base plate, and a cancel lever and the open lever are connected by a connecting member, and the cancel lever is moved from a connection position to a cancel position. By moving
The engagement between the latch and the locking plate is released through the open lever.
4. The device for opening and closing a vehicle lock according to any one of claims 3 to 5.